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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2014
Earnings Per Share [Abstract]  
Weighted-Average Number of Shares of Common Stock Used to Calculate Basic and Diluted Earnings Per Share
The table below presents the weighted-average number of shares of common stock used to calculate basic and diluted earnings per share:

 

                                                                                   
     Three Months Ended
September 30,
     Nine Months Ended
September 30,
 

(in thousands)

   2014      2013      2014      2013  

Weighted-average number of shares of common stock for calculating basic earnings per share

     25,953         25,649         25,885         25,338   

Effect of potentially dilutive securities from equity-based compensation

     199         446         292         449   
  

 

 

    

 

 

    

 

 

    

 

 

 

Weighted-average number of shares of common stock for calculating diluted earnings per share

     26,152         26,095         26,177         25,787   
  

 

 

    

 

 

    

 

 

    

 

 

Securities Not Included in Computation of Diluted Earnings Per Share

The following securities were not included in the computation of diluted earnings per share as their effect would have been anti-dilutive:

 

                                                                                   
     Three Months Ended
September 30,
     Nine Months Ended
September 30,
 

(in thousands)

   2014      2013      2014      2013  

Options to purchase shares of common stock

     9         —           9         41